Logan teagtje



L. TEAGUE.

PUMP.

. Patented Dee. '7, 1886.-

(No Model.)

UNITED STATESA PATENT OFFICE.

LOGAN TEAGUE, OF ARCATA, CALIFORNIA.

PUMP.

SPECIFICATION forming part of Letters Patent No. 353.897, dated December 7. 1886.

Application filed April 21, 1884.

To all whom it may concern.'

Be it known. that I, LOGAN TEAGUE, of Arcata, county of Humboldt, and State of California, have invented an Improvement in Pumps; and I hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to a new and useful pump in which the discharge is occasioned by the displacement of the water caused by the introduction ofthe plunger within a confined body of water, and the suction is occasioned v by the withdrawal of said plunger.

My invention consists in a cylinder provided with peculiarlyarranged entrance and outletvalves,areciprocatingplungerofsmaller diameter than the cylinder and adapted to be inserted and withdrawn from that chamber of the cylinder formed between the valves, andA in an arrangement to provide escape for the water when the plunger is at rest, whereby the danger of bursting from freezing is prevented, all of which I shall hereinafter fully describe by reference to the accompanying drawings, in which- Figure l is a vertical section of my pump. Fig. 2 is a vertical section of same, showing the plunger forced down far enough to permit the water in the cylinder to escape when the pump is to remain in a state of rest.

A is the pump-cylinder, having in its base an upwardly-swinging claclcvalve, a, and at its top a discharge spout. a. Vithin the cylinder is a transverse plate or diaphragm, B, annular in shape, and having at opposite sides the upwardlyswinging clack-valve b. Between the bottom of the cylinder and the diaphragm B is thus formed a chamber. F.

C is the plunger, preferably made ofa closed water-tight tube. It is made in two sections, coupled at c. The plunger passes down through the center of the annular diaphragm B, and is packed therein by means of an annular leather flap, D, secured by one edge to the edge of the diaphragm and adapted to lie up against the plunger, as shown.

Thediameter ofthe plunger is much less than that of the cylinder, and the operation is therefore as follows: The plunger is drawn up through the annular diaphragm, leaving behind it in the chamber a vacuum equivalent toits bulk, into which the water passes through the entrance-valve a. IVhen the plunger is forced down into the chamber, it displaces an amount of water equal to its bulk, and this Renewed October 27, 1886. Serial No. 217,363.

(No model.)

much water is forced upward through valves b, and, as the operation continues, is finally discharged. In this operation there is no friction on the plunger, the principle being the displacement of a portion of a contned body of water and the withdrawal of the body producing the displacement, so that it requires higher up, is brought opposite the diaphragm,

thus leaving an escape for the water in the upper part of the cylinder down into the chamber. r[his recess or groove may be partially covered with a smooth narrow plate, if desired.

The escape passage might be formed with a short pipe or otherwise, though I prefer the way shown. The vals/ea at the bottom is provided with a lever, m,L with which an arm, M, on the bottom of the plunger comes in contact when the plunger is forced down far enough to open its passage e. The valve a is thereby tipped up and an escape opened for the water in the chamber.

Any suitable means may be employed to reciprocate the plunger.

Havingthiis described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a pump, the cylinder A, having a valve, a, in its bottom, with a leverarm,.m, the annular diaphragm B, having valves b, and the reciprocating closed plunger C, formed in two parts, of a diameter smaller than that of cylinder A and passing down through said diaphragm, said plunger having a passage, e, in its side adapted to open a connection between the portions of the cylinder on each 'side of the diaphragm, and an arm, M, on its bottom adapted to operate against lever m to open valve a, substantially as and for the'purpose described.

In witness whereof I have hereunto set my hand.

LOGAN TEAGUE. Witnesses:

B. F. STERN, J. R. EMERSON.

IOO 

